Since July 19, 2024, the Miami Marlins have the highest ERA by a team, with an ERA of 5.25.

	TEAM	ERA	G	W%	W	L	SO	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Marlins	5.25	57	.404	23	34	469	0	12	502.0	513	293	317	83	199	32	3	2,201	12	8.41	3.57	2.36	1.49	21.3	9.0	1.42	.303	5.68	9.20
2	White Sox	5.15	55	.164	9	46	461	0	2	479.0	522	274	296	73	237	22	12	2,165	19	8.66	4.45	1.95	1.37	21.3	10.9	1.58	.327	5.56	9.81
3	Rockies	5.03	56	.446	25	31	402	0	15	490.2	525	274	296	81	183	26	0	2,143	14	7.37	3.36	2.20	1.49	18.8	8.5	1.44	.306	5.43	9.63
4	Rangers	4.99	57	.474	27	30	493	0	17	504.2	511	280	293	82	172	32	11	2,193	19	8.79	3.07	2.87	1.46	22.5	7.8	1.35	.303	5.23	9.11
5	Red Sox	4.98	56	.411	23	33	449	0	12	498.1	512	276	309	90	183	29	12	2,180	17	8.11	3.31	2.45	1.63	20.6	8.4	1.39	.295	5.58	9.25
6	Diamondbacks	4.80	55	.636	35	20	491	0	15	492.2	510	263	277	56	178	20	18	2,144	17	8.97	3.25	2.76	1.02	22.9	8.3	1.40	.325	5.06	9.32
7	Reds	4.73	57	.474	27	30	495	0	14	502.1	473	264	279	84	157	39	7	2,146	14	8.87	2.81	3.15	1.50	23.1	7.3	1.25	.284	5.00	8.47
8	Nationals	4.69	55	.436	24	31	442	0	14	487.2	524	254	287	64	168	14	3	2,129	18	8.16	3.10	2.63	1.18	20.8	7.9	1.42	.319	5.30	9.67
9	Pirates	4.67	56	.411	23	33	444	0	13	491.1	493	255	286	66	187	35	8	2,144	16	8.13	3.43	2.37	1.21	20.7	8.7	1.38	.302	5.24	9.03
10	Orioles	4.37	57	.474	27	30	479	0	13	498.2	490	242	268	64	163	14	5	2,131	20	8.65	2.94	2.94	1.16	22.5	7.6	1.31	.302	4.84	8.84
11	Twins	4.31	57	.456	26	31	517	0	13	505.0	474	242	260	65	152	23	3	2,134	17	9.21	2.71	3.40	1.16	24.2	7.1	1.24	.297	4.63	8.45
12	Phillies	4.29	56	.518	29	27	463	1	10	495.2	504	236	248	75	148	16	2	2,109	12	8.41	2.69	3.13	1.36	22.0	7.0	1.32	.305	4.50	9.15
13	Angels	4.28	56	.375	21	35	441	0	11	494.1	450	235	259	70	209	25	15	2,106	20	8.03	3.81	2.11	1.27	20.9	9.9	1.33	.279	4.72	8.19
14	Dodgers	4.23	56	.625	35	21	474	0	18	497.1	475	234	264	76	179	19	6	2,121	29	8.58	3.24	2.65	1.38	22.3	8.4	1.32	.291	4.78	8.60
15	Cardinals	4.15	56	.482	27	29	458	0	16	498.2	459	230	244	60	163	16	11	2,087	16	8.27	2.94	2.81	1.08	21.9	7.8	1.25	.287	4.40	8.28
16	Athletics	4.12	55	.545	30	25	455	0	16	494.0	465	226	244	51	165	25	4	2,089	28	8.29	3.01	2.76	0.93	21.8	7.9	1.28	.297	4.45	8.47
17	Yankees	4.05	55	.564	31	24	517	0	15	498.1	472	224	248	63	187	24	6	2,135	18	9.34	3.38	2.76	1.14	24.2	8.8	1.32	.304	4.48	8.52
18	Blue Jays	4.00	56	.500	28	28	453	0	12	495.1	413	220	241	67	176	30	7	2,063	11	8.23	3.20	2.57	1.22	22.0	8.5	1.19	.259	4.38	7.50
19	Royals	3.93	56	.536	30	26	478	0	13	499.2	465	218	238	48	157	30	12	2,101	18	8.61	2.83	3.04	0.86	22.8	7.5	1.24	.300	4.29	8.38
20	Cubs	3.85	54	.556	30	24	438	0	12	479.1	433	205	215	67	162	13	1	2,007	9	8.22	3.04	2.70	1.26	21.8	8.1	1.24	.276	4.04	8.13
21	Braves	3.76	58	.517	30	28	622	0	11	521.1	494	218	241	60	161	25	5	2,199	12	10.74	2.78	3.86	1.04	28.3	7.3	1.26	.326	4.16	8.53
22	Giants	3.69	56	.482	27	29	549	2	14	497.0	412	204	216	55	192	22	3	2,079	20	9.94	3.48	2.86	1.00	26.4	9.2	1.22	.283	3.91	7.46
23	Guardians	3.61	59	.525	31	28	512	0	17	526.0	440	211	231	66	172	20	8	2,172	10	8.76	2.94	2.98	1.13	23.6	7.9	1.16	.267	3.95	7.53
24	Mariners	3.61	55	.473	26	29	519	0	7	486.1	409	195	219	72	116	19	4	1,983	13	9.60	2.15	4.47	1.33	26.2	5.8	1.08	.268	4.05	7.57
25	Padres	3.38	54	.685	37	17	506	1	16	484.2	403	182	200	47	150	21	7	1,996	20	9.40	2.79	3.37	0.87	25.4	7.5	1.14	.280	3.71	7.48